Download User Manual

EA448
Generator Automatic Voltage Regulator
Operation Manual
Permanent Magnet Generator or A.R.E.P or Auxiliary Winding Type
Compatible with Leroy Somer R448*
* Use for reference purpose only and not a genuine Leroy Somer product.
Headquarters : No.3, Lane 201, Chien Fu ST., Chyan Jenn Dist., Kaohsiung, TAIWAN
Tel : + 886-7-8121771
Fax : + 886-7-8121775
URL : http://www.kutai.com.tw
1. SPECIFICATION
Sensing Input
Terminal
Frequency
Power Input
Voltage
Output
Voltage
Current
0 ~ 110V = 95 ~ 140V
0 ~ 220V = 170 ~ 260V
0 ~ 380V = 340 ~ 520V
50 / 60 Hz, selectable
40 ~ 150 VAC, 3 phase
Max 160VDC @120VAC
Max 10 A
Voltage Regulation
< ± 0.5% ( with 4% engine governing )
Voltage Build-up
Residual voltage at AVR terminal > 5 VAC
External Volts Adjustment
±10% @ 1K ohm
Response Time
0.3 ~ 1sec @ ±20% Voltage Vibration
Current Droop
2 sec. Max 7% @ P.F. = 0.7
Auxiliary Winding
6~150VAC (No load rms)
LAM Voltage Drop Rate
4.5~6.5V/Hz @ 220VAC
selectable
Dimensions
203mm L * 153mm W * 60.5mm H
Weight
950g ± 2%
2. OPERATION PROCEDURE
3. P3：Stability.
2.1 Jumper Adjustment
4. P4：Under-speed (U/F) and LAM protection: for
knee frequency adjustable us P4.
1. ST1 ： Connected wire ST1 for Single phase
measurement. Cut wire ST1 for three phase
measurement.
5. P5：Excitation over current adjustment use P5：
3.5A ~ 10A.
2. ST2 ： Response Time ： Fast (disconnected) /
Slow(Connected) Select.
2.3 Wiring
PS：It should do stable adjustment with P3.
1. X1-X2：Excitation power auxiliary winding input,
single phase 2 wires.
3. ST3：For 50/60Hz selection use Jumper.ST3.
2. Z1-Z2：Harmonic Power input (Multi-Harmonic).
4. ST4 ： Remove wire ST4 to Connect external
potentiometer (1KΩ). Connect wire ST4 when it is
not necessary to connect external potentiometer.
3. E+：Positive Output Terminal for Excitation power.
5. ST6：Instantaneous Compensation for Voltage.
PS：Remove wire ST6 when the regulator is used
in higher 600KVA.
6. ST7：Jumpers connected.
7. J1：Connected with LAM protection. Discounted
without LAM protection. No LAM protection, for
knee frequency adjustment use P4.
8. J2：LAM voltage drop rate, 1-2 about 4.5V/Hz,
2-3 about 6.5V/Hz @ 220VAC.
2.2 Adjustment
1. P1：Adjustment of quadrature droop. (Max 7%).
4. E-：Negative Output Terminal for Excitation power.
5. 0 ~ 110：Measure Power Input 110VAC.
6. 0 ~ 220：Measure Power Input 220VAC.
7. 0 ~ 380：Measure Power Input 380VAC.
Note：
：
1. When excitation power is three phase input,
connect X2, X1, Z2. See Figure 3.
2. Fuse capacity：10A / 250V.
3. When the regulator works normal, the LED will keep
“Light” condition. The LED will be turned off when
Stand-by power works in normal usual. In this
condition, the rated voltage will decrease
automatically and the voltage adjustment will failure
2. P2：Output Voltage adjustment by using P2.
______________________________________________________________________________________
2
EA448
VOLT
STAB
V/HZ
EXC. MAX
STAT
Figure 1 Outline Drawing
C.T
N:1A
Stator wires
Exciter field
Armature
R
S
T
FU
FV
FW
S2
S1
S4
S3
Fuse 10A
50HZ
60HZ
AVR EA448
X2
Z1
X1
Z2
E+
E0V
110V
220V
380V
S2
S1
3ph in
EXT.VR 1k Ohm
Figure 2
Power and Wiring for Harmonic Power
______________________________________________________________________________________
EA448
3
C.T
N:1A
Stator wires
Exciter field
Armature
R
S
T
FU
FV
FW
S2
S1
S4
S3
Fuse 10A
50HZ
60HZ
AVR EA448
X2
Z1
X1
Z2
E+
E0V
110V
220V
380V
S2
S1
3ph in
EXT.VR 1k Ohm
Figure 3 Three phase wiring
ST3
Fuse 10A
50HZ
60HZ
P5
J1
12 3
LED
X2
Z1
X1
Z2
E+
E0V
110V
220V
380V
J2
P4
ST2
P3
ST6
ST7
P2
ST1
P1
S2
S1
VR
1k
3ph in
Figure 4
ST4
Adjustment and Jumper Diagram
※ Use only original supplied spare protection fuse for fuse replacement.
※ Please accept our sincere apology if any modification in performance, specification or appearance is
made without prior notice.
______________________________________________________________________________________
4
EA448